Cloth drill



W. GORR.

CLOTH DRILL.

APPLICATION FILED MAR.27,1920.

Patented May 3-0, 1922.

2 SHEETS-SHEET 1.

W22)? asses W. GORE.

CLOTH DRILL.

APPLICATION FILED MAR. 21. 1920.

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' warm 6083,61 NEW YORK, 11.x.

Specification of Letters Patent. Pat t d May 30 1922.

. mncmon filed March 27, 1920. Serial no. 369,814.

To all whom it may concern: Be it known that-I, WALTER Gonn, a citizen of the United States, residing in New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Cloth DI'lllS, of which the following is a specification.

This invention relates to tools in general, and more especially to cloth drills for dlllling holes in cloth and the like.

Among the objects of the present invention, it is aimed to provide a drill for rapidly drilling a plurality of pieces of cloth packed together, to facihtate marking a plurality of pieces of cloth simultaneously 1n the course of laying out patterns and the like.

The invention specifically contemplates a' cloth-piercing device having a cloth-piercing tool rotatably and axially reciprocated. The invention still further contemplates a drill that is automatically driven to rotate, having means for advancing the drill,-w h1le being rotated, in an axial direction mto the articles to be drilled, thereupon withdrawing the drill and when withdrawn automatically causlng the drill to come to rest.

The invention still further contemplates a novel means for causing the advance and withdrawal of the drill simultaneously with its rotation, and at the same time to cause the advance and withdrawal of the drill into the cloth to be done at different speeds.

These and other features, capabilities and advantages of the invention will appear from the subjoined detail description of one specific embodiment of the invention illus-' trated in the accompanying drawings, in which- Figure 1 is a side elevation, partly in section, of the complete device. I

Fig. 2 is a fragmental view in end elevation relative to Fig. 1, showing a part of the device there shown.

Fig. 3 is a section on the line 3-3 of Fig. 1.

Fig. 4'is a, plan, partly broken away to show theiswitch.

In the embodiment illustrated, there is shown a base 1 having an upright 2 at one end thereof, and a bifurcated arm 3 extending from the upright 2 and over the base 1.

At the end of the arm 3 there is secured the support 4 of the motor 5 which is suitably .connected by the electric conductors 6,

7 and 8, with the source of current 9 and the binding posts 10 and 11 of the stationary switch blades 12 and 13 adapted to be engaged by the movable switch blade 14 secured to the handle 15 which is pivotally connected to the arm 3 adjacent to the upr ght 2,' 1n the present instance between the blfurcatlons of the arm 3. The lower end of the blade 14 has two engaging faces 16 and 17, the face 16 to facilitate the passage of the finger 18 in one direction, to the right, wlthout disturbing the engagement of the blade 14 with the contacts 12 and 13, while the face 17 will co-operate with the finger 18 when such finger 18 is moving in the opposite direction, to the left, to withdraw the blade-14-out of engagement with the contacts 12 and 13. Thus when the handle 15 1s swung upward, it will bring the blade 14 into engagement with the contacts 12 and 13 and thereby switch on the current to drive the motor 5, and while the movement of the finger 18 to the right will not disturb the posed above the bearing 21 of the bracket 22 which extends around the worm 20 formr ing a casing therefor, and then extends back to form theflanges 23 and 24 which are Vertically slidable in the guideways 25 and 26 formed in the lateral extensions 27 and 28 of the upright 2. Below the bearing 21 the spindle 19 is provided with the chuck. 301for receiving thedrill 31.

The base 1 is provided with an opening 32-to permit the passage of the drill 31 'therethrough, above which the bracket 32' extends up from the base 1. The bracket 32' as shown, is preferably provided with a funnel-shaped guideway 33 through which the drill 31 passes, forming a guide for the drill 31. p

Through the bearing plates 34 and 35 secured to the upper and lower ends of the upright 2, extend the bearing pins 36 and 37 respectively, which extend into the end plates 38 and 39 of the rack-frame 40. The rack frame 40 has two rack bars 41 and 42 thereon with their teeth disposed in planes forming-an oblique angle with one another.

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The finger 18 is secured near the upper (-lhl of the rack frame 40, below which. and preferably in immediate proximity thereto, is disposed the upper cam stud 43. Near lhe lower end of the rack frame 40 is disposed the lower cam stud 44.

To the upper end of the bracket 22, the spring cam 45 is secured, which has an inclined cam face 46 for co-operatiug with the cam stud 43, and to the lower end of the bracket 22, the spring cam 47 is secured, which has an inclined cam face 48 for cooperating with the cam stud 44.

The cam studs 43 and 44 are slidable on the rack frame 40, and are provided with adjustable means, such as the screw-clamps 43 and 44, for retaining the cam studs on the rack frame 40, and for regulating the distance apart of the cam studs-on the rack frame, and thereby regulating the extent of advance of the drill 31. Provision is thus made for the withdrawal of the through the action of the cam studs when the extent of the advance of the drill has been reached, the effect being that the device may be so regulated that when the drill has passed through a predetermined thickness it will be withdrawn.

The bracket- 22 is provided with a stub shaft 49 on which is mounted the small gear 50 which is in mesh with the small gear 51 fixed on the shaft 52 extending through the bracket 22 and on which is fixed the large gear 53 which is in mesh with the spur gear 54 fixed on the bearing 55 which is keyed to the shaft 56 mounted in the bracket 22 and on which the worm gear 57 is fixed, the worm gear 57 being in mesh with the worm 20. The bearing 55 projects outside of the bracket 22 having a knurled nut 58 thereon to facilitate sliding the bearing 55 relative to the shaft 56 and thereby withdrawing the gear 54 out of engagement with the gear 53. The shaft 52 projects outside of the bracket 22 and has secured thereto the knurled nut 59 whereby the train of gears may be operated by hand when the gear 54 is drawn out of engagement with the gear 53.

The gear 53 is disposed to engage the rack 41, and the gear 50 the rack 42', one to the exclusion of the other; in other words, assuming the gear 54 to be in mesh with the gear 53 :whenthe stud 43 has been en-- gaged' by-the cam 46 of the cam spring 45 and actuated the rack frame 40 to the left, the rack 42 will be'engaged by the gear 50 and consequently, if the handle 15 is thereupon depressed, the motor will rotate the spindle 19 and with it the drill 31, and at the sametime, through the worm 20, worm gear 57, gears 54, '53, 51, and 50 and rack bar 42, the bracket 22- will be advanced downward and with it the drill. 31. In-such downward movement, the drill 31 will, of course, be performing its holesdrilling opdrill nc es eration. As thc bracket 22approachcs the stud H, the cam face 48 of the spring 4? will engage thc stud 4-4, swing the rack l'rainc 4-0 to the right, and thereupon the gear 51 will bebrought into engagement with the rack 41 and the gear 50 out of can gagcincnt with the rack bar 42, and consequcntly the rotation of the gears reversed and with it. the bracket 22 drill 31 witlnlrawn. Upon the bracket 21 approaching the stud 43, the cam 46 will again engage such stud 43 to swing the rack frame 40 to the left and with it the linger 18 which, being obstructed in its movement by the face 17, will actuate the switch blade 14 to disengage the contacts 12 and 13.

When it is desired to advance and withdraw the drill 31 by hand, the knurled nut 58 is pulled to bring the gear 54 out of engagement with the gear The rotation of the drill can, of course, be effected as above by bringing the switch into engagement with the contacts 12 and 13. The vertical movement of the drill 31, however, will be acconu'ilished by manipulating the knurled nut 59. To facilitate anchoring the nut in position, the spring plunger 60 is provided.

To facilitate handling the apparatus, the handles 61 and 62 are provided extending from the opposite sides of the motor 5.

For resiliently anchoring the rack frame 40 against displacement, either when the rack bar 41 or rack bar 42 is engaged, two notches (S3 and 64 are provided in the end plate 38 to co-operate with the spring member 65 secured to the upright 2.

Itis obvious that various changes and modifications may be niade to the details of construction without departing from the spirit of the invention, or exceeding the scope of the appended claims.

I claim:

1. A device for drilling cloth or the like comprising a drill, means for rotating the drill, means for rapidly advancing the rotating drill through the cloth or the like. means for automatically rapidly withdrawing the rotating drill therefrom at the end Y 2. A device for drilling cloth or the like comprising a drill, means for rapidly advancing the rotating drill through the cloth or the like, means for automatically rapidly withdrawing the rotating drill therefrom raised and the llt at the end of the advance, means for preventing operation of said means for advancing and for withdrawing while the drill is rotating, mean for manually advancing and withdrawing the rotating drill after operat1on of said means for advancing and for withdrawing has beenprevented, and means for stopping rotation of the drill after withdrawal thereof.

3. A device for drilling cloth or the like comprisinga drill, means for rotating the drill, means for rapidly advancing the rotating drill through the cloth or the like, means for automatically rapidly withdrawing the rotating drill therefrom at the end of the advance, means for preventing operation of said means for advancing and for withdrawing while the drill is rotating, means for manually advancing and withdrawing the rotating drill after operation of said means for advancing and for withdrawing has been prevented, and means for automatically stopping rotation of the drill after withdrawal thereof.

4. A drilling tool for cloth and the like having a motor, a spindle axially slidable and rotatably mounted in said motor, a drill secured to said spindle to rotate therewith,

means for automatically advancing and.

withdrawing said spindlein' an'axial direction relative to said motor, an electric switch for controlling the current to said motor, and means for actuating said switch to shut off the current during the -withdrawal movement of said drill;

5. A drilling tool for cloth andthe like having a motor, a spindle axially slidable and rotatably mounted in said motor, a drill secured to said spindle to rotate therewith, two rack bars connected to one another and pivotally mounted, a bracket in which said 7 spindle is rotatably mounted, and a train of gears in said bracket adapted to mesh with one of said rack bars to advance said spindle while being rotated, and to mesh with the other of said rack bars to withdraw said spindle while being rotated.

6. A drilling tool for cloth and the like having a motor, a spindle axially slidable and rotatably mounted in said motor, a drill secured to said spindle to rotate therewith, two rack bars connected to one another and pivotally mounted, a bracket in which said spindle is rotatably mounted, a train of gears in said bracket adapted to mesh with one of said rack bars to advance said spindle while being rotated, and-to mesh with the other of said rack bars to withdraw said spindle while being rotated, and means for actuating each of said rack bars to swing about its pivot to disengage the advancing rack bar and engage the withdrawing rack bar at the end of theadvancing travel whereby the spindle will be automatically reversed'in it axial travel. i v v 7. A drilling tool for cloth and the like having a motor, aspindle axially slidable and rotatably mounted in said motor, a drill secured to said spindle to'rotate therewith,

two rack bars connected to one another and pivotally mounted a bracket in which said spindle is rotatably mounted, a train of gears in said bracket adapted to mesh with one of said rack bars to advance said spindle while being rotated, and to mesh withthe other of said rack bars to withdraw said spindle while being rotated, a switch for controlling the current to saidvmotor, and means for actuating said switch to shut off the current at the end of the withdrawing travel whereby the drill will come to rest at the end of said withdrawingtravel.

8. A drilling tool for cloth and the like having a motor, a spindle axially slidable bar and engage the withdrawing rack bar at the end of the advancing travel whereby the spindle will be automatically reversed in its axial travel, a switch for controlling the current to said motor, and means for actuating said switch to shut'ofi' the current at the end of the withdrawing travel where by the drill will come to rest at the end of said withdrawing travel.

9. The'combinatlon of a drill, mean for rotating the drill, a rack frame, rack bars operatively supported by the rack frame for advancing and withdrawing the rotating drill and provided with spring cams, a train of gears cooperating with the rack bars and actuated by the means for rotating. the drill, cam studs engageable with said spring cams,

and'adjustable means for securing the cam no studs to the rack frame.

' WALTER GORR.

Witnesses: 5

H. D. PENNEY, H. SCHOEBEL. 

